A light bulb with a tungsten filament is attached to a source of variable voltage. As the voltage is increased on the bulb,
a. the bulb's resistance decreases.
b. the bulb's resistance increases.
c. the power dissipated remains constant.
d. the current in the bulb decreases.
B
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Interference: What do we mean when we say that two light rays striking a screen are in phase with each other?
A. When the electric field due to one is a maximum, the electric field due to the other is also a maximum, and this relation is maintained as time passes. B. They are traveling at the same speed. C. They have the same wavelength. D. They alternately reinforce and cancel each other.
Potential: The electron-volt is a unit of
A. charge. B. electric potential. C. electric field. D. electric force. E. energy.
Jupiter has twice the mass of all the other planets combined
Indicate whether the statement is true or false
An intermediate _____________can have a wider region of possible compositions than does an intermediate compound.
Fill in the blank(s) with the appropriate word(s).